dridex | e35d1c23c98aa2f0159eb222030b43f7cbf14549e3edf381577634ad8bcb68d8

Analysis

max time kernel
109s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 10:03

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General

Target

769e43b2f8447602ab856cf0e19539a0N.dll
Size

184KB
MD5

769e43b2f8447602ab856cf0e19539a0
SHA1

3b35303393553a99756f1eda744fa3f376cde0b0
SHA256

e35d1c23c98aa2f0159eb222030b43f7cbf14549e3edf381577634ad8bcb68d8
SHA512

95047ba89e6797ad81d9fe169b1f56d85f9f68ad659127cc72ee38e4ac65c0707f9c761de1aa0bd2574e60a25d1b67b0f78d2e24f58781f08d11a7fc6f022109
SSDEEP

3072:dJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8JDa//2uFrSc:mfYOX+wTScR/Xzku9LVwouG

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/4480-1-0x0000000075050000-0x000000007507F000-memory.dmp	dridex_ldr
behavioral2/memory/4480-2-0x0000000075050000-0x000000007507F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
4928	4480	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 896 wrote to memory of 4480	896	rundll32.exe	84
PID 896 wrote to memory of 4480	896	rundll32.exe	84
PID 896 wrote to memory of 4480	896	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\769e43b2f8447602ab856cf0e19539a0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:896
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\769e43b2f8447602ab856cf0e19539a0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 624
    3⤵
    - Program crash
    PID:4928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4480 -ip 4480
1⤵
PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4480-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4480-1-0x0000000075050000-0x000000007507F000-memory.dmp

Filesize
188KB

Download
memory/4480-2-0x0000000075050000-0x000000007507F000-memory.dmp

Filesize
188KB

Download
memory/4480-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download